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Volar Forearm
Nerve, blood supply, origin, insertion
Muscle | Origin | Insertion | Blood Supply | Innervation |
---|---|---|---|---|
Pronator Teres | Humeral head - Proximal to medial epicondlye via common flexor tendon Ulnar - Medial side of coronoid process of ulna | Middle of lateral radial shaft | Inf ulnar collateral, ant ulnar recurrent; common interosseous; br from ulnar; radial a | Median n from C6,C7 |
Flexor Carpi Radialis | Medial epicondyle via common flexor tendon | Palmar surface of 2nd metacarpal | Br from ant & post ulnar recurrent, br from radial a | Median n C6,C7 |
Palmaris Longus | Medial epicondyle via common flexor tendon | Palmar aponeurosis | Br from ant ulnar recurrent | Median n C7,8 |
Flexor Digitorum Superficialis | Humeroulnar - Medial epicondyle via CFT, ant band of ulnar collateral lig, medial side of coronoid process Radial - Ant radial border from tuberosity to insertion of pronator teres | Superficial - Anterior surface of middle phalanges 3 & 4 Deep - Ant surface of middle phalanges 2 & 5 | Ant ulnar recurrent; br from radial, medial, and ulnar a | Median n C8,T1 |
Flexor Carpi Ulnaris | Humeral - Medial epicondyle via CFT Ulnar - medial margin of olecranon, proximal 2/3 of post border of ulna | Ant surface of pisiform, hamate, & 5th metacarpal | Br from ulnar, inf ulnar collateral, & post ulnar recurrent aa | Ulnar n C7-T1 |
Flexor Digitorum Profundus | Upper 3/4 of post ulnar border, medial and ant ulnar surfaces & ant surface of interosseous membrane | Palmar surfaces of bases of distal phalanges 2-5 | Inf ulnar collateral, ulnar recurrent; Br from common and ant inerosseous; br from ulnar & medial | Ulnar n & ant interosseous n C8,T1 |
Flexor Pollicis Longus | Ant surface of radius from below tubersosity to insertion of pronator quadratus, adjacent interosseous mem | Palmar surface of base of distal phalanx of thumb | Ant interosseous Radial | Ant interosseous n C7,C8 |
Pronator quadratus | Oblique ridge and medial surface of lower ant surface of ulna | Distal 1/4 of ant border and surface of shaft of radius | Ant interosseous a | Ant interosseous n C7,8 |